Hi,guys
Hope you are doing well!
I am an ogg format starter, and I am implementing ogg audio streaming.
I meet some problems for streaming.
My application is as follows:
I send download request to server,and server sends the download ogg file to
client side.
when a certain amount of data is downloaded, and I start to play the ogg
file by using a library.
I use juce c++ library which uses vorbisfile.c to read and write ogg format.
I updated the lengthInSamples of the ogg file to the size of ogg file.
After certain chunk of data is downloaded,
ogg length in samples is initialized by
callbacks.read_func = &oggReadCallback;
callbacks.seek_func = &oggSeekCallback;
callbacks.close_func = &oggCloseCallback;
callbacks.tell_func = &oggTellCallback;
const int err = ov_open_callbacks (input, &ovFile, 0, 0, callbacks);
lengthInSamples = (uint32) ov_pcm_total (&ovFile, -1);
input is the file stream.
The first chunk data is played excellent, however, after that , it gives me
static noise.
I debugged the decoder, and it seems that the ogg pattern is not decoded
right in this case.
In vorbisfile.c
static long _get_data(OggVorbis_File *vf){
....
long
bytes=(vf->callbacks.read_func)(*buffer*,1,CHUNKSIZE,vf->datasource);
..
}
The *buffer *should hold the header feild "oggs", however, it did not.
I think the problem is vf->seekable = 1.
if the vf->seekable = 1, is it the problem for streaming? How can I achieve
ogg streaming?
Thank you in advance!
Leon
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